Seniors in need often receive excessive donations near the holidays. Julie Rosenthal, program management specialist for Asian studies, makes sure that they are fed the rest of the year, too. Rosenthal runs a nonprofit program called “Food on the 15th.” The project has delivered 9,500 bags of groceries to hundreds of low-income seniors over the past six years, and is designed to introduce children of affluence to people who are struggling. “I thought my kids were way too focused on themselves. There was dance and drama and all that, but it was all about them,” said Rosenthal. She needed something …